turns out to be a boeing dreamliner. well the national transportation safety board is now launching a full investigation. this could be just one of several problems with the dreamliner, which was launched with so much fan nare. dan springer has details for us from seattle. >> reporter: yeah, jon the national transportation safety board has a team in boston right now investigating what they are calling a 787 boeing smoke event. it happened shortly after all the passengers and crew had got even off the plane at logan airport. they had just taken a 12-hour japan airlines flight from tokyo. a maintenance worker smelled smoke and traced it to a compartment near the back of the dreamliner which holds the lithium battery that powers the plane when it's not flying. a battery eventually exploded, the cabin filled up with smoke but nobody was hurt. had this happened during a flight it could have been catastrophic. it adds to the list of electrical problems the 787 has experienced since there was a major fire during a test flight i